Syringe-nozzle.



NoRvAL T. MORRIS, or MARIETTA, OHIO.

smmeE NozzLE.

Application filed March 7,

Specification of Letters Patent.

PatentedFeb. 26, 1907.

1905. Serial No- 248,801.

To all whom if may concern:

Be it known that I,'-NORVAL T. MORRIS, a to interfere with the outflowthereof.

citizen of the UnitedStates, residing at Marietta, in the county ofWashington and State of (.)hio, have invented a new and usefulSyringe-Nozzle, of which the following is a specification.

This invention relates to syringe-nozzles, and more particularly to oneadapted for the treatment of diseases of the urethra.

The object of the invention is to provide a nozzle which shall in asimple, thoroughly practical, and novel manner secure proper applicationof the medicament to the affected part, whereby more rapid cures can beeffected than with the ordinary nozzles of this character in common use.

With the above and other objects in view, as will appear as the natureof the invention is better understood, the same consists in the variousnovel details of construction of a retrojector syringe-nozzle, as. willbe hereinafter fully described and claimed.

In the accompanying drawings, forming a art of this specification, andin which like characters of reference indicate corresponding parts,Figure 1 is a view in erspective of one form of nozzle constructed inaccordance with the present invention. Fig. 2'is a view in longitudinalsection through the hozzle shown in Fig. 1. Fig. 3 is a view inlongitudinal section, showing the manner in which the syringe operateswhen positioned within the urethra. Figs. 4, 5, and 6 are enlargeddetail sectional views of slightly-modified forms of syringe-heads. Fig.7 is an enlarged detail view of the head shown in Figs. 1-3.

Referring to the drawings and to Figs. 1, 2., 3, and 7 thereof, 1designates the body or cannula of the s ringe-nozzle, having at one enda head 2 an at the other endaflanged or shouldered enlargement 3, bywhich the nozzle may be connected with a suitable conduit, such as arubber pipe or the like. The body 1 is gradually tapered from theenlargement 3 to the head 2, thus to facilitate inser- 4 with aplurality tion in use. The head 2 is conoidal in shape and is providedat or adjacent to its shoulder of discharge-orifices 5, which areangularly disposed relatively to each other and communicate and alinewith the conical end 6" of the duct 6 of the nozzle.

By forming the duct 6 with a conical end 6 and extending therearwardly-inclined orifices 5 directly from said end the liquid isprevented from rebounding to such an exten i kas e 1 end 6' deflects thewater rearwardlv andradially through the orifices with practically nodiminution of force. Adjacent to the head 2 is a collar 7, which isprovided with a plurality of orifices 8, which are disposedapproximately parallel with the duct- 6, although it is not essential,as they may discharge at an angle thereto, the body of the nozzleadjacent to the collar being slightly reduced, as at 9, thus to guardagainst any interference with the rear discharge of the medicamentthrough the orifices 7. duced portion 9 serves to produce a whirlingaction of the liquid discharged thereinto from the orifices 7. The headand shoulder, together with the neck portion 9, is made as a separateelement and is secured to the small end of the nozzle in any preferredmanner, as by a screw-threaded connection or by being brazed or solderedthereto.

In the form of embodiment of the invention shown in Fig. 4 instead ofhaving the head provided with the collar 7 the same is provided with abulbous shoulder or enlargement 10, provided with longitudinal orifices1 1, the enlargement subserving the same function as the collar shown inFigs. 13-that is to say, it operates as a distender to prevent the wallsof the urethra from closing around the head, and thus interfere with thedischarge of the liquid from the orifices 5, and for purpose of brevitythe said part will hereafter be referred to as the distender.

This re-"" In the form of the invention shown in Fig.

5 the distender is approximately semibulbe ous and is provided withlongitudinal orifices 13.

In the form of the invention shown in Fig. 6 the distender 14 is ofgreater transverse diameter than the head 2, while in the other forms ofthe invention the distender is sub-' stantially the same transversediameter as the head and is provided with orifices 15. i

In each form of the invention it will be observed that the peripher ofthe distender is a true circle and that t 1e orifices thereof are alldisposed some distance inward therefrom, thereby presenting a continuousan unbroken surface to engage the walls of the urethra, and thuspositively prevent the In t e use of the device when the nozzle ispositioned into the urethra the medicament will after passing out of theorifices 5 be roperly sprayed or discharged upon the a ected part, thisbeing held away from the orifices by 5 means of the distender, and afterthe medicament has performed its function it will pass through theorifices in the distender, and thus to the rear of the affected part.

It will be noticed that in all forms of the :0 invention an annulardepression 2 is formed in the nozzle between the head 2 and the collar7. By providin this depression the liq uid is highly agitate ordisturbed after being discharged from the orifices and'before pass- 15ing outward throughithe contracted openings 8, and therefore thediseased parts are thorou hly cleaned.

t will beseen from the foregoing description that although theimprovements of the so present invention-are simple-in character thatthey will be thorou hly effective in use for; the purpose designe andwill 'inza ready and practical manner obviate defects heretofore?,vpresent with/instrumentedlthis charaoter.

Havin thus'described the invention, what is claime is The combinationwith a tapered cannula having a lon itudinal bore; of a nozzle having aconoida head provided with rearward ly and radially dischargin orifices,and a cir- 3o cular distender dispose adjacent the head and havingorifices disposed parallel with the 'bore and the cannula, the oppositefaces of the distender bein parallel and at right angles to the cannu a,said nozzle having an 35 annular depression between the head anddistender forming a space for the action of dislturbedvli uid,saidliquid being adapted to be agitatedv y the walls of the groove anddis tender, and :a corresponding annular depres- 4a sion in rear of thedistender.

:In testimony that Iclaim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

' iNORVAL T. MORRIS,

Witnesses:

J CHBRENANI, SUSIE .NODN.

